Bismuth doped carbon xerogel nanocomposite incorporated in chitosan matrix for ultrasensitive voltammetric detection of Pb(II) and Cd(II)

Fort, Carmen Ioana; Cotet, Liviu Cosmin; Vulpoi, Adriana; Turdean, Graziella Liana; Danciu, Virginia; Baia, Lucian; Popescu, Ionel Cătălin

doi:10.1016/j.snb.2015.05.124

Cited by 53 publications

(28 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carbon nanomaterial‐based electrodes derived from biomass carbonization, as xerogels from sol–gel process, electrospinning, were utilized as electrode material for electrochemical sensing due to their excellent electrical conductivity and high surface area. Mesoporous carbon nanofiber (MCNF) has been recently attracted much attention as electrode modifier for electrochemical sensing .…”

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

“…Carbon xerogel materials synthesized from the convenient sol–gel process are being used for the construction of electrochemical sensors, offering special chemical and structural characteristics, including high specific surface area, low density, and high porosity . The high porosity of carbon combined with the high surface area of Bi NPs, synthesized via a one‐step sol–gel process, contributed to the adequate performance in heavy metal detection .…”

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

“…The high porosity of carbon combined with the high surface area of Bi NPs, synthesized via a one‐step sol–gel process, contributed to the adequate performance in heavy metal detection . The simultaneous detection of Pb 2+ and Cd 2+ was realized with Bi NP‐doped carbon xerogel incorporated in chitosan matrix . The Bi NPs were randomly dispersed in the carbon nanocomposite, and the two‐step pyrolysis strategy helped to bring more fractions of Bi onto the composite surface, resulting in higher electrochemical activity and easier access to heavy metal ions.…”

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

“…In addition, chitosan has abundant functional groups, which could promote the confinement of analyte on the electrode surface. The nanocomposite electrode demonstrated a sub‐picomolar detection limit of Pb 2+ …”

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

“…Recently, bismuth, as a promising substitute for Hg, has shown great potential in electrochemical sensing of heavy metals due to its low toxicity, large cathodic potential range, insensitivity to dissolved oxygen, and the ability to form alloy with certain heavy metals . Different analytes in environmental samples including but not limited to Pb and Cd, Ni, Co, and Tl have been successfully determined. Strategies of bismuth loading onto the electrode are listed in Table .…”

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

See 4 more Smart Citations

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

Hou

Zeinu

Gao

et al. 2018

Energy & Environ Materials

View full text Add to dashboard Cite

The increase in release of toxic heavy metals into natural water attracts much attention due to its devastating effect on ecology and human health. The design and implementation of green electrode materials is pivotal for improving the electrochemical performance of in situ heavy metal monitoring. This work reviews various novel electrode materials and hybrid materials that improve electrochemical detection. Modified green and novel electrode materials offer better performance due to their improved deposition with wide linear and enhanced response under optimized sensing parameters. In particular, recent works related to gold, carbon materials, bismuth, and metal oxide‐based electrodes are reviewed. The environmentally friendly (“green”) characteristics, as well as their versatility and flexibility, are especially emphasized. In addition, synthesis methods and novel designs of electrode integration are highlighted. Most of the substantial achievements as well as breakthroughs in recent years are surveyed, and the challenges and prospective in this field are also identified.

show abstract

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

Section: Electrode Materials For Heavy Metal Sensingmentioning

confidence: 99%

See 3 more Smart Citations

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

Hou

Zeinu

Gao

et al. 2018

Energy & Environ Materials

View full text Add to dashboard Cite

show abstract

Facet and Phase‐dependent Electroanalysis Performance of Nanocrystals in PTS Monitoring: Demonstrated by Density Functional Theory X‐ray Absorption Fine Structure Spectroscopy

Zhou

Huang

2018

Persistent Toxic Substances Monitoring

View full text Add to dashboard Cite

Selenium‐doped Graphite for Electrochemical Sensing and Adsorption of Hg(II) and Cd(II) Ions

et al. 2022

View full text Add to dashboard Cite

Selenium‐doped Graphite (Se‐DG) has been used for electrochemical (EC) sensing and adsorption of poisonous Hg(II) and Cd(II) ions which can produce acute toxic effects on various organs. Hence, detection and efficient removal of both the metal ions from aquatic sources are very crucial. Herein, square wave anodic stripping voltammetry (SWASV) method was applied for EC detection using Se‐DG coated glassy carbon electrode (GCE) as a working electrode. Corresponding EC responses were observed due to the interaction between the sensing surface and the analytes. Elemental Se (Se0) present in Se‐DG played a crucial role in EC sensing. The limit of detection (LoD) of Hg(II) and Cd(II) were observed to be 4.3 ppb and 1.9 ppb respectively. The limit of quantification (LoQ) were found as ppb 14.3 ppb and 6.3 ppb respectively. Batch method was carried out for adsorption of the same carcinogenic metal ions on the Se‐DG surface. Ultra‐trace concentration of the metal ions was determined in Inductively Coupled Plasma Mass Spectrometry (ICP‐MS). Maximum adsorption capacity (QM) for Hg(II) and Cd(II) were found 210.81 mg g−1 and 205.53 mg g−1 respectively from Langmuir fit. The adsorption process was spontaneous and endothermic and it could be better fitted by a pseudo‐second order rate law, suggesting a chemisorption over physisorption. X‐Ray Photoelectron spectroscopy (XPS) was performed to investigate the binding interaction of different functionalities present in Se‐DG with metal ions.

show abstract

Bismuth doped carbon xerogel nanocomposite incorporated in chitosan matrix for ultrasensitive voltammetric detection of Pb(II) and Cd(II)

Cited by 53 publications

References 39 publications

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

Recent Advances and Perspective on Design and Synthesis of Electrode Materials for Electrochemical Sensing of Heavy Metals

Facet and Phase‐dependent Electroanalysis Performance of Nanocrystals in PTS Monitoring: Demonstrated by Density Functional Theory X‐ray Absorption Fine Structure Spectroscopy

Selenium‐doped Graphite for Electrochemical Sensing and Adsorption of Hg(II) and Cd(II) Ions

Contact Info

Product

Resources

About